US4153549A - Sodium dialkyl sulfosuccinates as dewatering aids in the filtration of mineral concentrates - Google Patents

Sodium dialkyl sulfosuccinates as dewatering aids in the filtration of mineral concentrates Download PDF

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Publication number
US4153549A
US4153549A US05/817,409 US81740977A US4153549A US 4153549 A US4153549 A US 4153549A US 81740977 A US81740977 A US 81740977A US 4153549 A US4153549 A US 4153549A
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United States
Prior art keywords
mineral
dewatering
concentrate
salt
sodium
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/817,409
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English (en)
Inventor
Samuel S. Wang
Morris E. Lewellyn
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Wyeth Holdings LLC
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American Cyanamid Co
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Filing date
Publication date
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Priority to US05/817,409 priority Critical patent/US4153549A/en
Priority to ZA00783069A priority patent/ZA783069B/xx
Priority to AU36693/78A priority patent/AU518176B2/en
Priority to GB24868/78A priority patent/GB1597280A/en
Priority to CA305,048A priority patent/CA1096067A/en
Priority to AR272522A priority patent/AR215932A1/es
Priority to FI781916A priority patent/FI781916A/fi
Priority to PH21372A priority patent/PH14257A/en
Priority to BR7804626A priority patent/BR7804626A/pt
Priority to SE787807984A priority patent/SE7807984L/sv
Application granted granted Critical
Publication of US4153549A publication Critical patent/US4153549A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/03—Processes of filtration using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/012—Organic compounds containing sulfur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00—Specified materials treated by the flotation agents; Specified applications
    • B03D2203/02—Ores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00—Specified materials treated by the flotation agents; Specified applications
    • B03D2203/02—Ores
    • B03D2203/04—Non-sulfide ores

Definitions

  • This invention relates to an improved process for dewatering a mineral concentrate. More particularly, this invention relates to such a process wherein a dialkylsulfosuccinic acid and alkali metal and ammonium salts thereof are used as dewatering aid.
  • Ores of various minerals are concentrated by various procedures to provide mineral concentrates that are further processed to valuable materials.
  • One of the most widely used methods of concentraton of minerals is that of froth flotation which is applicable to a wide variety of ores including sulfide and non-sulfide varieties.
  • a series of flotations are performed whereby increasingly cleaner concentrates result.
  • After a concentrate has been sufficiently enriched in mineral values it may be subjected to further processing such as drying and smelting, which processing may be performed at another location.
  • To subject the concentrate to further processing it is generally dewatered by filtration or equivalent process, such as centrifugation to remove water therefrom.
  • the removal of water from the concentrate decreases the costs of shipping when it is processed at a new location.
  • the removal of water also reduces the requirements for energy consumption when drying is effected.
  • dewatering mineral concentrates generally involved filtration of the aqueous slurry of mineral values arising from concentrating the ore by flotation or other concentration process.
  • the residual water content of the dewatered mineral concentrate will vary widely depending upon the mineral composition, the procedure of dewatering employed, the absence or presence of dewatering aid, and the like.
  • dewatering aids have been used in the prior processes for dewatering. In some instances, the dewatering aid was not completely acceptable because it did not reduce the moisture content of the dewatered mineral concentrate adequately. In other instances, the dewatering aid was not substantially adsorbed on the dewatered mineral concentrate and contaminated the process water, which water is recycled to the mining processes including that of ore concentration from where the mineral concentrates to be dewatered arise. Contamination of the recycled process water adversely affects ore concentration and other processes associated with mining operations.
  • a process for reducing the moisture content of mineral concentrates which comprises mixing with an aqueous slurry of said mineral concentrate an effective amount of a dialkyl sulfosuccinic acid or salt thereof of the formula ##STR1## wherein M is a hydrogen, alkali metal, or ammonium cation and R is an alkyl group of about 10 to 24 carbon atoms, and thereafter dewatering the thus-treated slurry.
  • the dewatering process of the present invention desirably reduces the moisture content of the mineral concentrate being dewatered and retains the dewatering aid substantially on the dewatered mineral concentrate so as to minimize adverse effects on other mining processes using recycled water from the dewatering process.
  • FIG. 1 is a plot of residual moisture content of a mineral concentrate against dosage of certain dewatering aids
  • FIG. 2 is a bar-graph showing the retention of dewatering aid on the dewatered mineral concentrate.
  • any mineral concentrate that is conventionally subjected to dewatering for further processing.
  • mineral concentrates are those obtained from concentration using an aqueous slurry of finely ground ores.
  • the ores may be of the sulfide and non-sulfide types.
  • Particularly effective mineral concentrates include metal concentrates of copper, lead and iron ores as well as coal concentrates.
  • M is a hydrogen, alkali metal, or ammonium cation
  • R is an alkyl group of 10 to 24 carbon atoms.
  • Preferred species include those containing about 10 to 16 carbon atoms in the alkyl group and in the sodium salt form.
  • the dewatering aid may contain one or more solvents to facilitate handling of the composition.
  • Suitable solvents include water; alcohols, such as methanol, ethanol, isopropanol; glycols, such as diethylene glycol, triethylene glycol, and the like; glycol ethers, such as the monomethyl ether of ethylene glycol and the like; and mixtures thereof. It is generally preferred to use a composition containing about 0 to 70 weight percent of solvent, which may be diluted further for treatment.
  • an effective amount of dialkyl sulfosuccinic acid or salt thereof is that amount which provides a desirable reduction in moisture content of the mineral concentrate and which is substantially retained on the dewatered mineral concentrate.
  • the effective amount will vary widely, depending upon the mineral concentrate being dewatered, the specific dialkyl sulfosuccinic acid or salt thereof being used as dewatering aid, the extent to which dewatering is desired, and the like. Effective amounts are generally found in the range of about 0.05 to about 5 pounds per ton of mineral concentrate being dewatered. Preferred amounts are generally in the range of about 0.1 to about 2 pounds per ton of mineral concentrate.
  • the mineral concentrate is dewatered following conventional procedures. Generally the treated slurry is subjected to filtration using typical filtration devices. Vacuum or pressure filtration devices are suitable as are centrifuges.
  • dialkyl sulfosuccinic acids or salts thereof defined in the process of the present invention will provide desirably low moisture contents in the dewatered mineral concentrates and will avoid contamination of the process water.
  • Results and dosage levels are representing different dialkylsulfosuccinates against dosage of dialkylsulfosuccinate.
  • the curves show that while the 2-ethylhexyl derivative is more effective at low dosage, the other derivatives are more effective at higher dosages.
  • the retention data is shown as bar graphs wherein it is clear that the higher dialkylsulfosuccinates are retained in more substantial amounts than is the di(2-ethylhexyl)sulfosuccinate given in Table 1 and FIGS. 1 and 2.
  • sodium di(2-ethylhexyl)sulfosuccinate provides desirably low moisture contents, it is not substantially retained on the dewatered concentrate.
  • sodium dialkyl sulfosuccinates having 10 or more carbon atoms in the alkyl groups show desirable low moisture contents while being substantially retained on the dewatered mineral concentrate.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US05/817,409 1977-07-20 1977-07-20 Sodium dialkyl sulfosuccinates as dewatering aids in the filtration of mineral concentrates Expired - Lifetime US4153549A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US05/817,409 US4153549A (en) 1977-07-20 1977-07-20 Sodium dialkyl sulfosuccinates as dewatering aids in the filtration of mineral concentrates
ZA00783069A ZA783069B (en) 1977-07-20 1978-05-29 Ore benefication
GB24868/78A GB1597280A (en) 1977-07-20 1978-05-31 Dewatering mineral concentrate
AU36693/78A AU518176B2 (en) 1977-07-20 1978-05-31 Dewatering mineral concentrates
CA305,048A CA1096067A (en) 1977-07-20 1978-06-08 Ore beneficiation
AR272522A AR215932A1 (es) 1977-07-20 1978-06-09 Procedimiento para reducir el contenido de humedad en concentrados minerales
FI781916A FI781916A (fi) 1977-07-20 1978-06-15 Anrikning av malm
PH21372A PH14257A (en) 1977-07-20 1978-07-14 A process for reducing the moisture content of mineral concentrates
BR7804626A BR7804626A (pt) 1977-07-20 1978-07-18 Processo para reducao do teor de unidade de concentrados minerais
SE787807984A SE7807984L (sv) 1977-07-20 1978-07-19 Anrikning av malm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/817,409 US4153549A (en) 1977-07-20 1977-07-20 Sodium dialkyl sulfosuccinates as dewatering aids in the filtration of mineral concentrates

Publications (1)

Publication Number Publication Date
US4153549A true US4153549A (en) 1979-05-08

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Application Number Title Priority Date Filing Date
US05/817,409 Expired - Lifetime US4153549A (en) 1977-07-20 1977-07-20 Sodium dialkyl sulfosuccinates as dewatering aids in the filtration of mineral concentrates

Country Status (10)

Country Link
US (1) US4153549A (sv)
AR (1) AR215932A1 (sv)
AU (1) AU518176B2 (sv)
BR (1) BR7804626A (sv)
CA (1) CA1096067A (sv)
FI (1) FI781916A (sv)
GB (1) GB1597280A (sv)
PH (1) PH14257A (sv)
SE (1) SE7807984L (sv)
ZA (1) ZA783069B (sv)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231868A (en) * 1979-01-05 1980-11-04 American Cyanamid Company Process for dewatering mineral and coal concentrates
US4427568A (en) 1981-04-16 1984-01-24 Betz Laboratories, Inc. Composition for treating aqueous mediums
US4452704A (en) * 1981-04-16 1984-06-05 Betz Laboratories, Inc. Method for treating aqueous mediums
US4532049A (en) * 1984-05-10 1985-07-30 Nalco Chemical Company Dewatering agent compositions for sulfide materials
US4568475A (en) * 1984-05-10 1986-02-04 Nalco Chemical Company Dewatering agent compositions for sulfide materials
US4589985A (en) * 1984-12-03 1986-05-20 Calgon Corporation Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales
US4985162A (en) * 1989-01-06 1991-01-15 Wen-Don Corporation Dewatering composition
US5048199A (en) * 1989-01-06 1991-09-17 Wen-Don Corporation Dewatering composition
US5238119A (en) * 1989-07-29 1993-08-24 U.S. Borax Inc. Beneficiation of calcium borate minerals
US5451329A (en) * 1994-03-10 1995-09-19 Cytec Technology Corp. Dewatering of alumina trihydrate
US5942219A (en) * 1997-12-09 1999-08-24 Betzdearborn Inc. Composition for inhibiting microbial adhesion on surfaces
US6068874A (en) * 1993-02-16 2000-05-30 Dehydration Technologies, Inc. Process of dehydrating biological products
US6268012B1 (en) 1996-06-07 2001-07-31 Dtl S.A. Dried product and a drying process
WO2014179131A1 (en) * 2013-04-30 2014-11-06 Halliburton Energy Services, Inc. Controlled dewatering of confined, saturated formations in excavation mines
US20150240325A1 (en) * 2014-02-26 2015-08-27 Ecolab Usa Inc. Alternative additives to enhance slurry dewatering

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1210928A (en) * 1982-09-20 1986-09-09 Arnold M. Singer Process for removing contaminates from a well fluid and well system
US4525279A (en) * 1983-08-04 1985-06-25 Dow Corning Corporation Dewatering of mineral slurries

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259570A (en) * 1963-03-04 1966-07-05 Dow Chemical Co Dewatering aqueous suspensions of organic solids
US3300407A (en) * 1965-08-06 1967-01-24 Dow Chemical Co Process for dewatering an aqueous suspension of organic waste solids
US3577348A (en) * 1967-05-08 1971-05-04 Ici Ltd Trichlorotrifluoroethane water emulsion system
US3755280A (en) * 1971-03-05 1973-08-28 American Cyanamid Co Drying of acrylamide polymer gels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259570A (en) * 1963-03-04 1966-07-05 Dow Chemical Co Dewatering aqueous suspensions of organic solids
US3300407A (en) * 1965-08-06 1967-01-24 Dow Chemical Co Process for dewatering an aqueous suspension of organic waste solids
US3577348A (en) * 1967-05-08 1971-05-04 Ici Ltd Trichlorotrifluoroethane water emulsion system
US3755280A (en) * 1971-03-05 1973-08-28 American Cyanamid Co Drying of acrylamide polymer gels

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231868A (en) * 1979-01-05 1980-11-04 American Cyanamid Company Process for dewatering mineral and coal concentrates
US4427568A (en) 1981-04-16 1984-01-24 Betz Laboratories, Inc. Composition for treating aqueous mediums
US4452704A (en) * 1981-04-16 1984-06-05 Betz Laboratories, Inc. Method for treating aqueous mediums
US4532049A (en) * 1984-05-10 1985-07-30 Nalco Chemical Company Dewatering agent compositions for sulfide materials
US4568475A (en) * 1984-05-10 1986-02-04 Nalco Chemical Company Dewatering agent compositions for sulfide materials
US4589985A (en) * 1984-12-03 1986-05-20 Calgon Corporation Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales
US4985162A (en) * 1989-01-06 1991-01-15 Wen-Don Corporation Dewatering composition
US5048199A (en) * 1989-01-06 1991-09-17 Wen-Don Corporation Dewatering composition
US5238119A (en) * 1989-07-29 1993-08-24 U.S. Borax Inc. Beneficiation of calcium borate minerals
US6068874A (en) * 1993-02-16 2000-05-30 Dehydration Technologies, Inc. Process of dehydrating biological products
EP0672620A1 (en) * 1994-03-10 1995-09-20 Cytec Technology Corp. Process for reducing the moisture content of alumina trihydrate
US5451329A (en) * 1994-03-10 1995-09-19 Cytec Technology Corp. Dewatering of alumina trihydrate
US6268012B1 (en) 1996-06-07 2001-07-31 Dtl S.A. Dried product and a drying process
US5942219A (en) * 1997-12-09 1999-08-24 Betzdearborn Inc. Composition for inhibiting microbial adhesion on surfaces
WO2014179131A1 (en) * 2013-04-30 2014-11-06 Halliburton Energy Services, Inc. Controlled dewatering of confined, saturated formations in excavation mines
US9109338B2 (en) 2013-04-30 2015-08-18 Halliburton Energy Services, Inc. Controlled dewatering of confined, saturated formations in excavation mines
GB2527950A (en) * 2013-04-30 2016-01-06 Haliburton Energy Services Inc Controlled dewatering of confined, saturated formations in excavation mines
GB2527950B (en) * 2013-04-30 2020-04-15 Halliburton Energy Services Inc Controlled dewatering of confined, saturated formations in excavation mines
US20150240325A1 (en) * 2014-02-26 2015-08-27 Ecolab Usa Inc. Alternative additives to enhance slurry dewatering
CN106132502A (zh) * 2014-02-26 2016-11-16 艺康美国股份有限公司 增强浆料脱水的替代添加剂
US9896366B2 (en) * 2014-02-26 2018-02-20 Ecolab Usa Inc. Alternative additives to enhance slurry dewatering
CN106132502B (zh) * 2014-02-26 2019-07-12 艺康美国股份有限公司 增强浆料脱水的替代添加剂
US10457584B2 (en) 2014-02-26 2019-10-29 Ecolab Usa Inc. Alternative additives to enhance slurry dewatering

Also Published As

Publication number Publication date
GB1597280A (en) 1981-09-03
AU3669378A (en) 1979-12-06
PH14257A (en) 1981-04-23
BR7804626A (pt) 1979-03-13
AU518176B2 (en) 1981-09-17
ZA783069B (en) 1979-06-27
AR215932A1 (es) 1979-11-15
SE7807984L (sv) 1979-01-21
CA1096067A (en) 1981-02-17
FI781916A (fi) 1979-01-21

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